Knives were made in Austria, Czechoslovakia, and Germany. Wadsworth knives that are marked AUSTRIA, were made in Nixdorf, Bohemia, the cutlery center of the Austro-Hungarian Empire (today the town is called Mikulasovice, and is in the Czech Republic, but it still manufactures knives).

Wadsworth was a trademark brand used by A Kastor & Brothers. Kastor was an American company, that owned factories in Germany and in the US, and that also contracted private brand (i.e. its own brand) knives from other factories.